Fluid displacement light beam selection and positioning apparatus



Feb. 18, 1964 J. T. MCNANEY 3,121,867

FLUID DISPLACEMENT LIGHT BEAM SELECTION AND POSITIONING APPARATUS Filed May 11, 1962 f 75 m34 FIGA 68%/ FIGS United States Patent O M 3,121,867 FLUID DISPLACEMENT LIGHT BEAM SELECTION AND POSITIONING APPARATUS Joseph T. McNaney, 8548 Boulder Drive, La Mesa, Calif. Filed May 11, 1962, Ser. No. 194,087 10 Claims. (Cl. 340-347) 'Ihis invention relates to an improvement in means designed to convert binary code related input functions to light beam selection, selection-compensation, and light beam recording-position functions through the use of hydraulic fluid displacement techniques.

'Ihe present invention utilizes a hydraulic uid as a means of linking together a system of binary code related iluid displacement members with iluid displacementresponsive members for the establishment of light beam selection, selection-compensation, and recording-position 4functions necessary for displaying or making ia record of message characters in response to coded input information. Ihe uid intermediate the various members is contained within a hermetically sealed envelopment of which these members are a part, therefore, upon the application of an input function to any one or a combination of displacement members the fluid serves as a means of totalizing and imparting an output function to one or more displacement-responsive members. Light reflector means is associated with the displacement-responsive members for providing the light beam selection, selection-compensation, and recording-position functions in accordance with the requirements of the coded input commands.

An object of this invention is to provide a light beam selection and positioning apparatus of the type referred -to which is exceptionally accurate, capable of high speed operation, dependable over long periods of time, and relatively simple in construction.

Numerous other objects, of course, will appear hereinafter as a description of the invention prodeeds.

The novel features that are considered char-acteristic of this invention are set forth with particularity in the appended claims. The invention itself, both as to its organization, and method of operation, as well as additional objects and advantages, will best `be understood from the following description when read in connection with the accompanying drawings in which:

FIGURE l is a schematic diagram of a` hydraulic uid displacement mechanism for converting binary code related input functions to light beam selection functions, selection-compensation functions, and light beam recording-position functions;

FIGURE 2. shows a detail of a uid displacement means used in the FIGURE 1 embodiment of the invention;

FIGURE 3 shows aA detail of a uid displacementresponsive member and light reflector means used in the FIGURE 1 embodiment;

FIGURE 4 shows a `detail of another iluid displacement-responsive member and light reilector means used in the FIGURE 1 embodiment; and Y FIGURE 5 represents an example of a type of beam forming member capable of being used in the invention. p Referring now to FIGURE l, the uid displacement light beam selection and positioning apparatus is shown schematically to include ya iirst envelopment and a second envelopment '11, each being represented by a cross section of a complete envelopment; and each envelopment shown to comprise a main body 12 of rigid construction, Va plurality of fluid displacement diaphragms 14, and a iluid displacement-responsive diaphragm 16. The space 18 within each envelopment 10 and 11 is filled with a hydraulic fluid, such as oil, or other forms of hydraulic iiuid, to essentially link the 3,121,867 Patented Feb. I8, 1964 ICC various diaphragms of each envelopment together whereby movements of one or more of the displacement diaphragms 14 will be imparted to a displacement-responsive diaphragm 16. All of the fluid displacement diaphragms 14, or exible members 14, are capable of being flexed in a direction away from the iiuid inspace 18, or, against the fluid. When a diaphragm 14 is made to move in -a direction away from the iluid the atmospheric pressure surrounding the envelopments will allow the displacement-responsive diaphragm 16, or exible member 16, and the fluid `to be displaced in the direction of the diaphragm 14 movement. Under these circumstances the flexible member 16 will move with the iluid in the direction of arrow 20. When a diaphragm 14 is allowed to return in a direction `against the uid the flexible member 16, of course, will move with the uid displacement in the direction of -arrow 22.

Each of -the diaphragms 14 are provided with a centrally located shaft-like member 24 which is supported by the main body .12, and against which a diaphragm 14 is made to rest under its ofwn spring tension. Theprimary function of the member 24 is to serve las a reference bearing for the diaphragm 14. On the opposite side of each diaphragm 14 there is a solenoid actuator 26 having a pole piece 23 which is supported a predetermined distance from the diaphragm 14. In FIGURE 2, a detail of this uid displacement means is shown. When, for example, the solenoid actuator |26 is in 4a de-energized ycondition the diaphragm 14 will be in the position as shown, resting against the member 24, and a predetermined distance from the one end 30 of the pole piece 28. When the solenoid actuator 26 is energized, however, the diaphragm 14, being of magnetically permeable material, will be exably dished in the direction of lthe pole piece 28 until it comes 4to rest against the end 3i), as indicated by a dotted line position 32 of the diaphragm 14. Although the member 24 has a primary function of serving as a reference bearing Iagainst which a diaphragm 14 will come to rest, the member 24 may be of magnetized material and thereby force the diaphragm 14 to be magnetically returned thereto when a solenoid actuator 26- is returned toy a de-energzed condition.

The uid displacement-responsive member 16, of the first envelopment 10, is again shown in FIGURE 4, and is designed to receive a mechanical displacement about an axis 34 adjacent one end 36 of the member 116. A bellows-like partition 38 is secured to the outside edges of the member 16 and the main body 12 to satisfy the hermetic seal requirements of the invention, in addition toit allowing an opposite end 40 of the member 16 to respond to fluid displacements. Light reilector means 42, illustrated as being in the form of a mirror 42, is attached to the outside surface 44 of the member "16.

The fluid displacement-responsive member 16a, of the second envelopment 11, is again shown in [FIGURE 3, and is designed to receive `a mechanical displacement about an axis 35 adjacent one end 37 of the member 16a. A bellows-like partition 39 is secured to the outside edges of the member 16a and the main body 12 to satisfy the hermetic seal requirements of the invention, in addition to its allowing an opposite end 41 of `the member 16a to respond to uid displacements. Light reilector means 43, illustrated as being in the form of a mirror 43, is attached to `the outside surface 45 of the member 16a.

The solenoid actuators 26 will be energized by means of electrical currents connected selectively to a system of input terminals 51, 52, 53 and 61, 62, 63, under the control of rst and second sets of binary code information. A first set of binary code information will be used in controlling currents to actuators 26a 261;, 26C, of the first envelopment 10 and the second envelopment 11, and a second set of binary code information will be used in controlling currents to actuators 26x, 26y, 26z, of the second envelopment 11. Furthermore, in response to the first set of binary code information `input functions may be applied -to predetermined fluid displacement means of the first envelopment `and the second envelopment 11, and in response to the second set of binary code information input functions maybe applied to predetermined fluid displacement means of the'second `envelopment 11. The resultant fluid displacements of the first and second envelopments will provide first and second decimalized functions Ywhich will be imparted to the member 16 and the member 16a of the first envelopment 10 and the second envelop-ment 11, respectively, for deriving therefrom light beam selection and Vlight beam recording-position functions.

. To illustrate at least one means of utilizing these functions the light reflector means 42 of the first envelopmentl andthe light reflector means 43 of the second envelopment 11 have been arranged in a predetermined manner for receivingl light beams from a source `54 and a beam forming member 56, and for controlling the selec- .tion and positioning of vthe light beams for display or recording on a beam receiving means 58. A lens system has lbeen provided for imaging the illuminated matrix 56 on the beam receiving ,means 58. The matrix56, or beam forming member 56, is represented in FIGURE 5 ashaving a series of light transparent areas in the form of letters, abedefgh. The location of the letters in the `matrix 56 coincide,` respectively, with the identified decimalized positions,`0 l 2 3 4 5 v6 7.

An examination of the invention in conjunction with light beams available in the matrix 56 and the receiving means 53 which has established thereon the'decimalized recording. positions, 0 1.2 3 4 .5 6 7, will be helpful in obtaining a further understanding of-how the invention isv able to convert binary code related input functions to light beam selection, selection-compensation, and light beam recording-positioning functions, and alsohow the latter three inter-related functions maybe utilized in a binary `code to message character recorder.

rLight beams in the forms of letters a through h,.from the matrix 56, `are Adirected through the lens 60 4and onto the reflecting surface of the mirror 42, and reflected therefrom in the 'direction of the mirror '43. The reflect- -ing surface dimensions of ther-mirror 43 are .designed to be -just slightly greater than the height andrwidth of the largest letter to be received'from the mirror 42. Since Yall of the letters being reflected from the -mirror 42 are `made to follow a course `whereby the optical-axes of lthe individual beams areparallel-to one another, `the center- -to-'center spacing of the'beams and thesurface dimensions of the mirror 43 will permit the-mirror 43 to function as a limiting aperture, receiving and reflecting but one letter shaped-beam at a time.

Under the conditions of a 000 code controlled input tofthe terminals 51, 52, y53, the' letter -ashaped beam will follow optical paths 65 and 66, and the last letter h-shaped -beam from the matrix A56 will follow optical paths 67 land 68. Since only the -a-shaped beam from the matrix-will be on the'path which Iwill direct it to the mirror 43, this will then be the only ybeamte be reflected by-the mirror 113. Under the conditions of a O00 code controlled-.input to the terminals 61, 62, 63, the a-shaped-beam will be reflected along an optical path 69, and to a position "0 on the receiving means 58. `If, for example, the inputcodes 001, 010, 100 are applied to the terminals 61, 62, 63, the a-shaped beam'will be reflected along an optical path 70, and to a 7 position on the receiving means 58. The other available code combinations capable of being applied to the terminals 61, y62, 63 will allow the a-shaped beam to be reflected along the remaining optical paths intermediate the paths `69 Vand 70, and to positions 1 through 6 on the receiving means `58, intermediate the "0 and 7 positions.

When, for example, the codes 001, 010, are being applied to the terminals 51, 52, 53, the fluid displacement means under the control of the solenoid actuators 26a, 26b, 26C, of the first envelopment 10, will impart a displacement irr the direction of arrow 20 to the member 16, and, the fluid displacement means under the control of the solenoid actuators 26a, 26b, 26C, of 4the second envelopment 11, will imparta displacement in the direction of arrow 20 tothe member 16a. Under these conditions the displacements imparted to members 16 and 16a will beequal, in each case, vto binary numeral summations lll, which will permit theletter a-shaped beam to follow the optical paths `65 and '72, while the letter h-shaped beam is following the optical paths 67, 74, 69, assuming of course that a 000 code controlled input exists on the terminals 61, 62, 63. i

The optical path 69 from'the mirror 43 to the receiving means 53 may be referred to as a Zero reference Vpath since all recorder-position functions derived from binary code related input functions will be dependent upon the fact that such a reference path exists. Recording-positioning functions in rrelation to this zero reference path, therefore, will be proportional to the binary code related input functions being applied to the fluid displacement means under the control of the solenoid actuators' 26x, .263', 26z, of the second envelopment 11.

The optical path `66 from the mirror 42 to the mirror 43, followed by the a-shaped beam under 000 code input conditions to the terminals 51, 52, 53, will be extended valong the optical Vpath 69 by reason of the angular ,posi- 4tion vof the mirror 43 in relation to` the vpaths .66 vand 69. And the angular position of the reilecting surface of the mirror 43 in. relation to the opticalpath 69 is a function of light beam selection functions imparted to the reflect- -ing surface of the mirror `42. Therefore, in order to effect the extension of the .h-shaped beam, along .the optical path 74, along the' optical path 469 it will be necessary to derive a selection-compensation function from the binary code related input functions, simultaneously with the light beam selection function, which will result in a displacement of the reilecting; surface of the mirror 43. 4Without the introduction of a selection-compensation function only the a-shaped beam, upon selection, would be permitted to follow the opticalpath 69. Their-shaped beam, for example, would folow a path 75 somewhat displacedfrom the zero reference path 69, unless a lselection-compensation function were introduced. -Although the other letter shaped beams,.b throughg, Would be less divergent in relation to the zero reference path 69 upon selection of lany one-of them, Vwithout selectioncompensation none of these beams would be ableto followI the zero reference path 69.

In order to relate the fluid displacement functions to a set of binary code related information, the invention is designed to make use of the diaphragm -14 travel distance between the shaft-like member 24 and po'le piece 28, in combination withthe displaceable area of vthe diaphragm 14. "For example, a `displacement of fluid under the control of the solenoid actuator 46x, as indicated, will be directly related to the 'diaphragm travel distance and lits displaceable area, and, equal to'one half the lluid displacement under the control of actuator, 26y, and one quarter the fluid displacement under the control of actuator 261. Similar relationships exist also where actuators 26a, 26b, 26e, of the respective rst andsec- V.ond envelopments 1t)` and 11 are concerned.

Although l have chosen to illustrate the use of diaphragm-like members 14 -as Huid-displacement members, which fare secured tothe main body `12 of the envelopments v10 and 11 adjacent the peripheries thereof, it should, of course, befunderstood that'the'invention is not to belimited tothe use of diaphragm-like members. Piston-like members, for example, being closely litted within adjacent cylinders maybe Vutilized -without departing from the fluid displacement function establishment principles of the invention.

The light source 54, the beam forming member 56,the lens system 60, and the beam receiving means 58 have been arranged in the particular manner as illustrated in the drawing only for the purpose of showing at least one means by which the lighty beam selection, selection-compensation, and recording-position functions provided by the invention may be utilized. There are numerous other such means of utilizing the function conversion principles of the invention which will become apparent to those skilled in the arts.

Although I have indicated the reflecting surface dimensions of the mirror 43 as being designed to be just slightly greater than the height and width of the largest letter to be received whereby such surface dimensions will permit the mirror 43 to function as a limiting aperture, it Will of course be equally understood that a limiting aperture may be supported immediately in front of, or on the surface of, the mirror 43 and thereby perform the same function.

Although I have limited myself, in the illustrations, to the showing of but three binary code related fluid displacement means [for light beam selection and selectioncompensation functions, and but three binary code related fluid displacement functions where light beam recordingpositions are concerned, it should be understood by those skilled in the arts that the invention is not to be limited in this regard. It should also be understood that many of the other embodiments embracing the general principles and constructions hereinbefore set forth, may be utilized and still be within the limits of the present invention.

The particular embodiment of the invention illustrated and described herein is illustrative only, and the invention includes such other modifications and equivalents as may readily appear to those skilled in the arts, and within the scope of the appended claims.

I claim:

l. A hydraulic fluid displacement mechanism for converting binary code related input functions to a light beam selection function and a flight beam recordingposition function comprising:

(a) space within first and second hermetically sealed envelopments;

(b) means for hermetically sealing a fixed amount of fluid within said space of each envelopment and maintaining said fluid in a first static condition;

(c) fluid sealing means of each of said envelopments including a set of binary code related hermetic fluid displacement members and a hermetic fluid displacement responsive member;

(d) means for applying binary code related input functions to the fluid displacement members of said envelopments;

(e) means for deriving first and second fluid displacements, respectively, from said first and second envelopments and changing the respective conditions of said fluid Ifrom first static conditions to second static conditions proportional to the value of said binary code related input functions; and

(f) means for imparting said first and second fluid displacements to the fluid displacement-responsive members, respectively, of said first and second envelopments.

2. A hydraulic fluid displacement mechanism for converting binary code related information to Vlight beam selection and light beam recording-position functions comprising:

(a) space within first and second hermetically sealed envelopments;

(b) means for hermetically sealing a fixed amount of fluid within said space of each envelopment and maintaining said flu-id in a first static condition;

(c) fluid sealing means of each of said envelopments 6 including a set of binary code related hermetic fluid displacement means and a hermetic displacementresponsive member;

(d) first and second sets of binary code information;

(e) means for applying input functions to predetermine fluid displacement means of said first and second envelopments in response to said first set of binary code information;

() means for applying input functions toA predetermined fluid displacement means of said second envelopment in response to said second set of binary code information;

(g) means for deriving first and second envelopment fluid displacements substantially proportional to the value of said input functions of said first set of binary code information;

(h) means for deriving second envelopment fluid displacements substantially proportional to the value of said input functions of said second set of binary code information;

(i) means for changing the respective conditions of vsaid fluid from said first static conditions to second static conditions and imparting said first and second envelopment fluid displacements to the fluid displacement-responsive members, respectively, of said first and second envelopments.

3. A hydraulic fluid displacement mechanism for converting binary code related input functions to light beam selection and light beam recording-position functions comprising:

(a) first and second hermetically sealed envelopments;

(b) means for hermetically sealing a fixed amount of fluid within each of said envelopments and maintaining said fluid in respective first static conditions;

(c) said envelopments including a plurality of hermetic diaphragms;

(d) means for applying binary code related input functions to predetermined diaphragms of each envelopment;

(e) fluid displacement means Ifor changing the respective conditions of said fluid from said first static conditions to second static conditions and converting said input functions, respectively, to first and second decimalized functions; and

(f) means for imparting said first and second decimalized functions to first and second diaphragms, respectively, of said first and second envelopments.

4. A hydraulic fluid displacement mecahnism for converting binary code related yinput functions to light beam select-ion and light beam recording-position functions comprising:

(a) first and second hermetically sealed envelopments;

(b) means for hermetically sealing a fixed amount of fluid within each of said envelopments and maintaining said iiuid in respective first static conditions;

(c) said envelopments including a plurality of hermetic diaphragms for changing the static conditions of said fluid from said `first static conditions to predetermined second static conditions;

(d) means for applying a first set of binary code related functions to predetermined hermetic diaphragms of said first and second envelopments;

(e) means for applying a second set of binary code related functions to predetermined hermetic diaphragms of said second envelopment;

(f) fluid displacement means for converting said first set of binary code related functions to first and second decimalized functions and imparting said decimalized functions to first and second diaphragms, respectively, of said first and second envelopments upon changing the first static conditions of said fluid to predetermined second static conditions;

(g) fluid displacement means for converting said second set of binary code related functions to a third decimalized function and combining said third enanas? decimalized function with said second decimalized function for impartation to said second diaphragm upon changing the first static condition of said fluid to said predeterminedsecond static condition. V5. A lhydraulic `fluid displacement mechanism for .con- -verting binary code related inputl functions to light beam selection, selection-compensation, and light beam recording-position functions comprising:

l.(a) lfirst :and second hermetically sealed envelopments;

.(b) means for .permanently sealing a fixed amount 0f lluid Within each ofsaid envelopments and maintaining said yliuid in respective first static conditions;

(c) said Venvelopments including a Aplurality of hermetic'diaphragms for changing the static condition of said fluid while preventing the passage of fluid therethrough;

(d) means yfor applyinga first set of binary code related yfunctions to predetermined vhermetic diaphragrns of said first and second envelopments;

(e) means for applying a second set of binary code related functions to predetermined hermetic dia- .phragms of said second envelopment;

(j) fluid displacement means for converting said first set of binary code related functions to first and second .decimalized functions and imparting said decimalized functions to first and second hermetic diaphragms, respectively, of said first and second envelopments;

(g) means for deriving a light beam selection Vfunction from said first diaphragm substantially proportional to said first set of binary code related functions;

(h) means for deriving a selection-compensation function from said second diaphragm substantially proportional to said first set of binary code related functions;

(z')' liuid displacement means for converting said second set of 1binary code related functions to a third decimalized function and imparting said third fdecimalized function to said ,second diaphragm; and

(j) means for deriving a light beam recording-position function 'from said second diaphragm. substantially proportional t said second set of binary code'related functions.

6. A hydraulic fluid vdisplacement mechanism for converting binary code related input functions to lightbeam selection and light beamrecording-positions comprising:

(a) first and second hermetically sealed envelopments;

(b)-said envelopments including a plurality of hermetic diaphragms for providing a permanently sealed envelopment;

(c) a fixed amount of hydraulic fluid lilling the space Within said envelopments to thereby interconnect said diaphragms, respectively, of said first and second envelopments;

(d) means for applying binary code related functions to predetermined diaphragms of said `first and second-envelopments for changing said fluid-from a primary static conditionto a secondary vstatic condition simultaneously with the application of said functions;

(e) light reflector means associated with' atleast one diaphragm of each envelopment;

1(1) means for effecting secondary static conditions Within said firstvand second envelopments substantially proportional to said binary code related functions;

(g) said'light reflector means being associated with a diaphragm of said lirst envelopment adapted to receive -displacements in response to said fluid displacements from said first envelopment;

(h) said light reflector means being associated with a diaphragm of said second envelopment adapted to receive displacements in response to said lluid displacements from said second envelopment; and

(i) means for deriving light beam selection functions and light beam recording-position functions from said light reflector means substantially proportional to said binary code related functions. 7, A'hydraulic fluid displacement `mechanism'for converting binary code related functions tolight beam re- 'flector selection functions, selection-compensation functions, and light beam recording-position functions-comprising:

(a) 'first and second 'hermetically sealed envelopments;

(b) `said 4envelopments including a yplurality of fluid displacement means and fluid displacement-responsive means for hermeticall-y sealing said l'envelopments and being incapable of admittingthe flow of any fluid therethrough;

(c) a'lixed and permanently sealed v`amount -of hydraulic fluid means Within -saidcnvelopments adapted to interconnect said displacement means and said displacement-responsive means of the respective-envelopments;

(d) `light reflector means adapted to receive `angular displacements in response to movements imparted to the displacement-responsive means of the respective envelopments;

(e) meansfor applying a first set of `binary code related functions to the fluid displacement means of said first envelopment kand to `predetermined .uid displacement means of said second envelopmentfor changing said fluid kfrom a primary static condition to aV secondary static condition simultaneously with the application of said functions;

(f) means for applying a second `set of .binarycode related functions to predetermined fluid displacement means of said second envelopment for changing additionally the static condition simultaneously `with the application -of said second set of functions;

(g) means ferfeffecting static conditions Within said first and second envelopments in proportion-to the value of said first` set of binary code relatedfunctions;

(l1) means for elfectiug statioconditions within-said second envelopment in proportion to the value of said second set of binary code related functions;

(i) means for imparting a light .beamselection function to the'lightrefiectormeans of saidfirst envelopment and a selection-.compensation function to the lightreflector means Vof said secondenvelopment corresponding to the value of said first setof binary code related functions; and

(j) means for imparting `,a light beam recording position function to the light reliectortmeans of said second envelopment corresponding to the combined 4Value of said irstrandrsecond setstof binary code related functions.

TB. A hydraulic liuid displacement mechanism for converting binary code related inputfunctionsto light beam reflector selection functions and light beam reflector recording-position functions comprising:

(a) first and second hermetically sealed envelopments;

(b) each of said envelopmentsincluding a set of fluid displacement .members and a fluid displacementresponsive member for hermetically vsealing said envelopments and being incapable-of admitting the flow of any fluid' therethrough;

(c) aV fixed and permanently sealed amount of hydraulic fluid filling the space within each envelopment andrnade to assume a first staticV condition;

(d) reference bearing means associated with each lluid displacement member;

(e) light reflector means associated with each displacement-responsive member;

(f) actuator means for applying binary code related Ainputfunctions to said fluid displacement members;

(g) means for limiting the displacement of each fluid displacement member in accordance with respective requirements of saidlbinary code rel-ated input functions;

(z) means for effecting second static fluid conditions substantially proportional to the value of said input functions and simultaneously With the application of said functions;

(i) means for imparting said effect of said second static fiuid conditions to said fluid displacement-responsive members; and

(j) means for deriving from said fluid displacementresponsive members light beam reflector selection functions and light beam reflector recording-position functions substantially proportional to said binary code related input functions.

9. AV binary code controlled mechanism for deriving therefrom a combination of light beam refiector selection, selection-compensation, and recording-position functions comprising:

(a) first and second hermetically sealed envelopments each containing a fixed amount of fluid permanently sealed therein;

(b) said first envelopment including a first set of hermetic input members and a hermetic output member, each being incapable of admitting the flow of any iiuid therethrough;

(c) said second envelopment including second and third sets of hermetic input members and a hermetic output member each being incapable of admitting the flow of any fluid therethrough;

(d) reference bearing means for supporting each of said input members in a zero reference position;

(e) light beam reflector means associated with and thereby under the control of each of said output members;

(f) actuator means for displacing said first and second sets of input members in response to a first set of binary code signals;

(g) actuator means for displacing said third set of input members in response to a second set of binary code signals;

(h) means for limiting the displacement of each input member in proportion to the value of said binary code signals;

(i) means for imparting a displacement to said output member of said first envelopment in response to displacements imparted to said first set of input members;

(j) means for imparting a displacement to said output member of said second envelopment in response to displacements imparted to said second and third sets of input members; Y

therefrom a combination of light beam reflector selection and selection-compensation functions comprising:

(a) first and second hermetically sealed envelopments each containing a fixed amount of fiuid permanently ealed therein;

(b) said first envelopment including a first set of hermetic input members and a first hermetic output member each being incapable of admitting the flow of any duid therethrough;

(c) said second envelopment including a second set of hermetic input members and a second hermetic output member each being incapable of admitting the flow of any fluid therethrough;

(d) reference bearing means for supporting each 0f said input members in a zero reference position; (e) light beam reflector means associated with and thereby under the control of each of said output members;

() binary code controlled actuator means for imparting displacements to said first set and said second set of input members;

(g) means for limiting the displacement, respectively, of said first and second sets of input members upon the impartation of displacements thereto;

(h) means for imparting displacements, respectively, to

said first and second output members upon the impartation of displacements to said first and second sets of input members;

(i) means for deriving a light beam reflector selection function from said first envelopment substantially proportional to the value of said binary code controlled actuator functions; and

(j) means for deriving a light beam reflector selectioncompensation function from said second envelopment substantially proportional to the value of said binary code controlled actuator functions.

References Cited in the file of this patent UNITED STATES PATENTS 3,081,942 Maclay Mar. 19, 1963 

5. A HYDRAULIC FLUID DISPLACEMENT MECHANISM FOR CONVERTING BINARY CODE RELATED INPUT FUNCTIONS TO LIGHT BEAM SELECTION, SELECTION-COMPENSATION, AND LIGHT BEAM RECORDING-POSITION FUNCTIONS COMPRISING: (A) FIRST AND SECOND HERMETICALLY SEALED ENVELOPMENTS; (B) MEANS FOR PERMANENTLY SEALING A FIXED AMOUNT OF FLUID WITHIN EACH OF SAID ENVELOPMENTS AND MAINTAINING SAID FLUID IN RESPECTIVE FIRST STATIC CONDITIONS; (C) SAID ENVELOPMENTS INCLUDING A PLURALITY OF HERMETIC DIAPHRAGMS FOR CHANGING THE STATIC CONDITION OF SAID FLUID WHILE PREVENTING THE PASSAGE OF FLUID THERETHROUGH; (D) MEANS FOR APPLYING A FIRST SET OF BINARY CODE RELATED FUNCTIONS TO PREDETERMINED HERMETIC DIAPHRAGMS OF SAID FIRST AND SECOND ENVELOPMENTS; (E) MEANS FOR APPLYING A SECOND SET OF BINARY CODE RELATED FUNCTIONS TO PREDETERMINED HERMETIC DIAPHRAGMS OF SAID SECOND ENVELOPMENT; (F) FLUID DISPLACEMENT MEANS FOR CONVERTING SAID FIRST SET OF BINARY CODE RELATED FUNCTIONS TO FIRST AND SECOND DECIMALIZED FUNCTIONS AND IMPARTING SAID DECIMALIZED FUNCTIONS TO FIRST AND SECOND HERMETIC DIAPHRAGMS, RESPECTIVELY, OF SAID FIRST AND SECOND ENVELOPMENTS; (G) MEANS FOR DERIVING A LIGHT BEAM SELECTION FUNCTION FROM SAID FIRST DIAPHRAGM SUBSTANTIALLY PROPORTIONAL TO SAID FIRST SET OF BINARY CODE RELATED FUNCTIONS; (H) MEANS FOR DERIVING A SELECTION-COMPENSATION FUNCTION FROM SAID SECOND DIAPHRAGM SUBSTANTIALLY PROPORTIONAL TO SAID FIRST SET OF BINARY CODE RELATED FUNCTIONS; (I) FLUID DISPLACEMENT MEANS FOR CONVERTING SAID SECOND SET OF BINARY CODE RELATED FUNCTIONS TO A THIRD DECIMALIZED FUNCTION AND IMPARTING SAID THIRD DECIMALIZED FUNCTION TO SAID SECOND DIAPHRAGM; AND (J) MEANS FOR DERIVING A LIGHT BEAM RECORDING-POSITION FUNCTION FROM SAID SECOND DIAPHRAGM SUBSTANTIALLY PROPORTIONAL TO SAID SECOND SET OF BINARY CODE RELATED FUNCTIONS. 